12280266 has 12 divisors (see below), whose sum is σ = 26607282. Its totient is φ = 4093416.

The previous prime is 12280249. The next prime is 12280271. The reversal of 12280266 is 66208221.

It can be written as a sum of positive squares in only one way, i.e., 10400625 + 1879641 = 3225^2 + 1371^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341101 + ... + 341136.

Almost surely, 2^12280266 is an apocalyptic number.

12280266 is an abundant number, since it is smaller than the sum of its proper divisors (14327016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12280266 is a wasteful number, since it uses less digits than its factorization.

12280266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682245 (or 682242 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12280266 is about 3504.3210469362. The cubic root of 12280266 is about 230.7115080758.

Adding to 12280266 its reverse (66208221), we get a palindrome (78488487).

The spelling of 12280266 in words is "twelve million, two hundred eighty thousand, two hundred sixty-six".